forked from OSchip/llvm-project
35 lines
1.3 KiB
C
35 lines
1.3 KiB
C
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// RUN: %clang_analyze_cc1 \
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// RUN: -analyzer-checker=core,alpha.cplusplus.EnumCastOutOfRange \
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// RUN: -verify %s
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enum En_t {
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En_0 = -4,
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En_1,
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En_2 = 1,
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En_3,
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En_4 = 4
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};
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void unscopedUnspecifiedCStyle() {
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enum En_t Below = (enum En_t)(-5); // expected-warning {{not in the valid range}}
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enum En_t NegVal1 = (enum En_t)(-4); // OK.
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enum En_t NegVal2 = (enum En_t)(-3); // OK.
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enum En_t InRange1 = (enum En_t)(-2); // expected-warning {{not in the valid range}}
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enum En_t InRange2 = (enum En_t)(-1); // expected-warning {{not in the valid range}}
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enum En_t InRange3 = (enum En_t)(0); // expected-warning {{not in the valid range}}
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enum En_t PosVal1 = (enum En_t)(1); // OK.
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enum En_t PosVal2 = (enum En_t)(2); // OK.
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enum En_t InRange4 = (enum En_t)(3); // expected-warning {{not in the valid range}}
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enum En_t PosVal3 = (enum En_t)(4); // OK.
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enum En_t Above = (enum En_t)(5); // expected-warning {{not in the valid range}}
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}
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enum En_t unused;
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void unusedExpr() {
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// Following line is not something that EnumCastOutOfRangeChecker should
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// evaluate. Checker should either ignore this line or process it without
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// producing any warnings. However, compilation will (and should) still
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// generate a warning having nothing to do with this checker.
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unused; // expected-warning {{expression result unused}}
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}
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